This comprehensive guide delves into the intricate process of conducting alignment and suspension maintenance for the Ford Mustang Mach-E. Given its foundation on Ford's Global Electrified 1 (GE1) platform, an evolution of the C2 architecture shared with models like the Focus and Kuga, understanding its unique requirements for an all-electric SUV is crucial. Technicians must meticulously follow manufacturer-specified procedures and specifications, which include preparing the vehicle by ensuring proper tire pressure, inspecting for wear or damage, and stabilizing the steering wheel. This approach guarantees accurate measurements and successful adjustments to both front and rear suspension components, ride height, and critical driver-assistance systems like headlamp leveling sensors.
Before any adjustments are made, thorough preparation of the vehicle is paramount. This involves placing the Mach-E on a perfectly level surface and verifying that tires are inflated to the recommended pressure. Technicians should also conduct a detailed examination for any signs of tire wear, damage, or suspension component degradation. For ride height measurements, the vehicle must be situated on a flat surface with correctly inflated tires, a full fuel tank, and all fluid levels accurate, free of any cargo. It is also vital to check for aftermarket modifications to the steering, suspension, wheels, or tires. Prior to taking measurements, the suspension should be vigorously jounced to allow the vehicle to settle naturally. Furthermore, to enable rolling compensation measurements, the vehicle's Rollaway Protection Mode must be bypassed by leaving the car in neutral and powered on during the alignment process, sometimes requiring the driver's seatbelt to be secured to prevent it from shifting into park.
Adjustments to the front suspension primarily involve camber and toe settings. Front camber is modified at the strut-to-knuckle connection point. After measuring the current camber, the wheels and tires are removed, the brake hose is unbolted and moved, and the wheel knuckle is supported. The original strut-to-knuckle bolts are replaced with new service fasteners, which are designed to be smoother and slightly smaller in diameter. By shifting the knuckle either inward or outward, the camber can be brought into the correct range, with approximately 0.5 degrees of adjustment available between the maximum inboard and outboard positions. It's important not to fully tighten these fasteners until the camber is precisely corrected, after which they are torqued to 173 lb.-ft. Following this, the brake hose is reinstalled, and its bolt torqued to 97 lb.-in. Front toe is adjusted via the inner tie rods; with the steering wheel held straight, the outer tie-rod end is held stationary while its jam nut is loosened, and the inner tie rod is rotated to achieve the desired toe specification. Care must be taken to prevent the steering gear bellows from twisting during this process. Rechecking toe and road testing the vehicle are essential final steps.
The rear suspension also allows for both camber and toe adjustments. Rear camber is regulated by manipulating the upper control arm at its inboard mounting point. After an initial camber reading, the inboard nut is loosened, and the control arm is repositioned to alter the reading. Following this, a torque of 76 lb.-ft. is applied to the upper control arm inboard nut. Rear toe is adjusted at the toe link. The area around the joint should be cleaned to ensure proper clamping of the cam nut and bolt. The toe-link nut is loosened, and the toe-link bolt is rotated to obtain the required setting, then tightened to 66 lb.-ft. without disturbing the adjustment. For Mach-E models equipped with Lane Departure Warning, an IPMA camera alignment is mandated after rear toe adjustments, requiring a scan tool and adherence to specific calibration procedures, followed by a road test.
Measuring the ride height of the vehicle involves a surface gauge, which is used to take precise measurements from a level surface to designated suspension reference points. For the front, measurements are taken from the surface to the center of the lower arm's forward bolt and the ball-joint pinch bolt; the difference between these two points determines the front ride height. Similarly, for the rear, measurements extend from the surface to the center of the lower arm-to-subframe bolt and the lower arm-to-wheel-knuckle bolt, with the difference providing the rear ride height. While the procedure outlines how to acquire these measurements, specific target values are not provided, necessitating consultation of the appropriate model-year service information. Additionally, the Mach-E features headlamp level sensors on both the front (left front suspension) and rear (left side), with arm brackets connected to the lower arms. Technicians should inspect these sensors, their brackets, arms, and wiring for any damage. Although sensor removal and installation are detailed, specific adjustment or calibration post-alignment is not universally required, but any disturbance or damage to these components warrants consulting the vehicle's service documentation for necessary repair protocols.
